Drawing apparatus

摘要

A drawing apparatus provided with calculative function of a calculation portion. A universal parallel ruler in which operating keys and a calculation result display portion for operating the calculative function are disposed on the surface of a member, the base of which is connected with an operating grip of a head portion to project sideways of the member, the head portion being disposed to be moved and set to any position on a drawing board by guide rail members or jointed arm members and supporting a vertical scale and a horizontal scale to be set to any angle.